Creating a GPT partition to build a Mac OS X bootable drive on Windows 10After you complete the steps, the USB flash drive from MBR to GPT format, you can use the steps below to create a bootable USB installation media to install Mac OS X.
Install Os X Yosimite For Making A Bootable Usb
Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click the OK button to create a bootable USB of the operating system.
Once your bootable USB installation media is ready, remove it and insert it into your Mac, power it on, hold down the Option key, and select the USB you just created to reinstall Mac OS X.
To create a bootable Mac drive you need any disk with Mac OS X 10.11.0 El Capitan or newer (10.12 Sierra, 10.13 High Sierra, 10.14 Mojave, 10.15 Catalina) either running as your main system, or just being installed on a drive that's connected to your Mac at the moment. Go to "Create Boot Drive" feature, and choose the drive you would like to copy the OS X system files from to the new drive that we are building. Once the source disk is selected, proceed with choosing the destination to make a USB bootable drive.
Make sure you try all available data recovery methods to get your deleted data back. Also note: Disk Drill does provide a separate feature to install a new instance of Mac OS X using the bootable drive that can be created with it. However, this article explains the steps required to create the Mac OS X USB boot disk for lost data retrieval and running Disk Drill in a ready-to-use standalone recovery environment.
The createinstallmedia command can be used to create a bootable installer. You need to use the Mac Terminal app and enter the correct command based on the OS version running on your computer. Use the following steps:
Since you now have your bootable USB memory drive, you might also be interested in installing the operating system on the Mac. In order to achieve that, first you will have to restart your Mac. The next required step is to select the Option key and boot from this drive. The next step is extremely fast and simple: just utilise the step-by-step setup to install OS X 10.10 Yosemite.
To install macOS or OS X from USB, you need to create a bootable install USB drive for Mac operating system. This tutorial will introduce you three ways to create bootable USB drive for macOS High Sierra, macOS Sierra, Mac OS X El Capitan, Yosemite, Mavericks and more.
IMPORTANT: The contents of the drive will be erased after creating a bootable installer drive. Therefore, make sure there is nothing important on your flash drive before you continue with the following steps.
The following command is to create a bootable copy of Mac OS installer on a USB drive named FlashInstaller. If your USB drive has a different name, replace FlashInstaller in the command with the name of your USB drive. If you don't want to modify the command, change the name of your flash drive into FlashInstaller.
Then you need to check the name and path of your USB drive. If it is correct, press "y" then hit "Enter". The Mac will begin to create a bootable install drive for macOS High Sierra, macOS Sierra, Mac OS X El Capitan/Yosemite/Mavericks. When it is done, Terminal will shows "Done".
If you think it is too much trouble to use Terminal to make a bootable installer on a USB drive, you can use tools like DiskMaker X, Install Disk Creator. Both the tools can make an install drive for macOS Sierra, OS X El Capitan, OS X Yosemite and more.
DiskMaker X: When you launch the application, it will try to find the downloaded macOS or OS X installers program on your Mac. And you just need to follow its on-screen instructions to create a bootable USB drive by clicking a few buttons.
Before using createinstallmedia command, people used to use Disk Utility to create a bootable installer drive manually. But the process is much more complicated than the Terminal method. So Apple also suggests you make a bootable install drive via Terminal.
Erasing Disk: 0%... 10%... 20%... 30%...100%...
Copying installer files to disk...
Copy complete.
Making disk bootable...
Copying boot files...
Copy complete.
Done.
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